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Z axis motor/leadscrew fault. Warranty or parts?

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I was having some issues on one of my Ultimakers (UM2E+). I was getting some banding on prints in the Z axis. No big deal as I can troubleshoot that and resolve it, or so i thought.

The Z axis screw is actual bent a tiny bit(I think it always was to be honest), but the main issue is the Z axis motor, it has problems moving from time to time. It can cause failed prints as you can imagine at intermittent intervals.

I really only noticed that issue when I was raising the bed and it stopped halfway and started clicking and grinding the other day(also a slight electrical burning smell from it, you know the one). Seems to happen randomly but in general the print quality is now rubbish as the Z axis is just not performing as it should.

I swapped the motor into another Ultimaker 2 Extended + we had spare in the office, and the issue follows the motor. Also compared the lead screw and isn't quite as straight as the other working printer.

While i was at it i swapped the good parts into the "faulty" Ultimaker and did a test print, all went fine.

So, where can i get a new motor and screw? Warranty replacement or do i just buy the parts? I see I can no longer purchase direct from Ultimaker and the parts are not for sale by resellers I dont think.

Any help, guidance or direction is very much appreciated, especially the official line from Ultimaker  :)

.

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If it's still within the warranty period I would ask my reseller about it and it may be covered. Although you reseller might not list the part on the website they still may have it on hand or they will get one for you. You can get the part number from the github if you need to.

Most of the time this is due to the linear bearings being faulty. you may want to check those also.

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